<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
</head>
<body>

<div id="app">
    <div v-bind:style="styleObject">计算属性</div>
</div>

<!--引入vue文件-->
<script src="https://unpkg.com/vue@3/dist/vue.global.js"></script>
<script>
    const vm = Vue.createApp({
        // 计算属性
        computed: {
            styleObject: function() {
                return {
                    color: 'blue',
                    fontSize: '30px'
                }
            }
        }

     }).mount('#app');
</script>

</body>
</html>
